Pet proofing made simple!Put a Zone near anything you want your dog to avoid.Place a Zone and set range from two to 12 feet.Fit collar on your dog.Enjoy your dog-free zone.Extra add-on zones and collars are availableThe fast and easy way to help your dog avoid problem areas.Cordless system designed by professionals to instantly keep your dog away from problem areas in your home--no training necessary. You can put a Zone near anything you want your dog to avoid--the trash, kitchen counter, dining room table, baby's crib, or protect your fine furniture. Your dog's collar safely reminds him that this space is off-limits.This Extra Pet Proofing Barrier works with Zones systems ZND-1200 and ZND-1300.